6th Class Science Electricity and Circuits Question Bank Electricity and Circuits

  • question_answer
     The diagram shows identical lamps X and Y connected in series with a battery. The lamps light with normal brightness.
     
     If a third lamp Z is connected in parallel with lamp X, then what will happens to the brightness of the lamp V?
                         

    A) Brighter than normal              

    B) Normal            

    C) Dimmer than normal             

    D) Very dim (cannot be seen)        

    Correct Answer: A

    Solution :

    The third lamp Z is connected parallel to X, so the current gets divided among X and Z. So both bulbs X and Z light dimmer and the bulb Y lights brighter than earlier because current through it increases.


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